Simple problemsShortcuts : This shortcut must be applied only starting with 19 series.Example :What day of the week on 17th june , 1998? Solution : 5 -> the given month code(august) 17 -> the given date 98->(19 th century after years) 24-> ((47/4) = 11 i.e how many leap years -------- total = 144 ((144/7) = 20 and the remainder is 4) therefore in the above week table the no 4 code represents wednesday so the required day is wednesday. Problem 1 : The first republic day of the India was celebrated on 26th January,1950. It was : Solution : 01 26 50 12 ---------- total = 89 ((89/7) = 12 and the remainder is 5) therefore in the above week table represents the number 5 as thursday, so the required day was Thursday. Problem 2 : Find on which day 15th august1947 ? Solution : 03 15 47 11 ---------- total = 76 Then (76)/7 = 6 odd days 6 indicates friday in the above week table. Therefore required day is friday. Problem 3 : Find on which day jan 26th 1956 ? Solution : 01 26 56 14 -1 (-1 indicates leapyear(i.e 1956),so 1 reduce from the total) --------- total = 96 Then (96)/7 = 5 odd days 5 indicates thursday in the above week table Therefore our required day is Thursday. Problem 4 : Today is friday after 62 days,it will be : Solution : Each day of the week is repeated after 7 days. so, after 63 days,it will be friday. Hence ,after 62 days,it will be thursday. Therefore the required day is thursday. Problem 5 : Find the day of the week on 25th december,1995? Solution : 06 25 95 23 --------- total = 149 Then (149)/7=(23)=2 odd days Therefore the required day is "Monday". |